Home / 8,819.60-13,230.48-3,890.48

Finding the Fourth Proportional to 8,819.60, 13,230.48 and 3,890.48

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Solution

The fourth proportional to 8,819.60, 13,230.48 and 3,890.48 is: 5,836.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,819.60 : 13,230.48 = 3,890.48 : x
  2. Step 2: Convert to fraction form
    8,819.60/13,230.48 = 3,890.48/x
  3. Step 3: Cross multiply
    8,819.60x = 13,230.48 × 3,890.48
  4. Step 4: Simplify right side
    8,819.60x = 51,472,917.83
  5. Step 5: Solve for x
    x = 51,472,917.83/8,819.60
  6. Step 6: Final answer
    x = 5,836.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.